Starlets stepped out in a deeper shade of blue on the red carpet this week. Blue cocktail dresses are making a big impact, with navy being hailed the 'new black' this stylish season.

Model and actress Brooklyn Decker combines two big trends - Navy and lace, in a 'Zarita' dress by Diane von Furstenberg. She adds a flash of red with pointy-toe heels by Manolo Blahnik. I really like her modern short hairdo.

Emma Roberts is ruffly in a textured halter-neck dress by Burberry Prorsum. Her black suede sandals are by Elie Saab. She kept her hair simple in a high ponytail.

Sophia Bush wears a deep blue metallic and mesh dress with horizontal stripes by Chris Benz. Her electric pink heels are by Alexander McQueen. The pale blue Judith Leiber is an odd addition of colour.

Kristen Bell attended the 'Scream 4' premiere in a silk cowl neck Vanessa Bruno frock with reversible tie. Her cute tasseled heels are by the same designer.

Alexis Bledel is elegant in a mid-length, midnight blue tweed dress with navy belt by Oscar de la Renta. She paired it with black Giuseppe Zanotti peep-toe heels.